Fumblin,
Not sure if you are still looking for a manual, but most of the old truck parts suppliers will have the chevrolet 42-48 car/ 42-46 truck manual. It covers up to 1 1/2 ton trucks. The manual is well written 60 year old book. Very easy to understand and better than a chilton. Don't buy it off E-bay...the on line or catalog places are cheaper.
If you have not owned or checked into a 41-46 before, take care not to bend up the lower splash pan..it is right behind your bumper, underneath the grill. If you hook a log chain to the frame on the old gal to get her to the barn, you may bend up that piece of sheet metal. Yours is in great shape....not many are. Fiberglass is all I can find.
Nice looking truck...have fun with it...
